I would not buy that coop for several reasons.
First is size. It will hold 3-4 birds maximum. It will be a pain in the back to tend them and when you have to go in the run.
Second they are ALWAYS made of a very soft wood that warps, decays and falls apart.
ANYTIME the size is listed in INCHES it is to small.
The coop is aprox 4'x4' including nest boxes. It has WAY to many nests for the size of coop.
That "run" is just under 7' long and just 3'3" wide. It is not even 4 ' tall at the peak.
The run is barely big enough for 2 birds.
Free ranging doesn't really "buy" extra space when it is time to roost.
How many birds are you needing to house?